Toyota 2015 Prius Owner's Manual page 309

Disabling pre-collision braking
Radar sensor
PRIUS_OM_OM47A17U_DVD_(U)
2-4. Using other driving systems
Pre-collision braking enabled
Pre-collision braking disabled
The "PCS" warning light will
turn on when pre-collision
braking is disabled.
The radar sensor detects vehi-
cles or other obstacles on or
near the road ahead and deter-
mines whether a collision is
imminent based on the position,
speed, and heading of the obsta-
cles.
I n f o r ma t i o n P r o v i d e d b y :
2
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